Royal Case Company Condition 1 11-inch Small #185 Airtight/Watertight Protective Case with DIY Customizable Foam Airtight/watertight (up to 3 foot depth) to keep your equipment dry and dust free Virtually indestructible Customizable and removable pick n' pluck foam Spring loaded latches/O-ring seal/interior pressure Regulated by pressure valve Comfort molded handles Outer dimensions (inches): 10.63 x 9.63 x 6.73. Inner dimensions (inches): 9.29 x 7.23 x 6.13.